Soldering appearance inspection apparatus

Details Soldering appearance inspection apparatus Soldering appearance inspection apparatus

1990-11-15

1992-09-15

Lall, Parshotam S.

Boots, shoes, and leggings

364507, 382 8, 358106, G06F 1546

Patent

active

051483750

ABSTRACT:
A soldering appearance inspection apparatus is for detecting a faulty soldering at a soldered portion on a printed circuit board. The inspection apparatus includes an illuminating device for illuminating the soldered portion, an image pickup device for picking up an image of the soldered portion, a position detecting device for detecting the position of the soldered portion from the picked up image, and a soldered state judging device for judging an excess or insufficiency of the amount of solder, and also for judging a presence or absence of scorching and luster at the soldered portion, based on a ratio of a region of light subjected to regular reflection on the solder to a size of the soldered portion.

REFERENCES:
patent: 4454585 (1984-06-01), Ele
patent: 4772125 (1988-09-01), Yoshimura et al.
patent: 4878114 (1989-10-01), Huynh et al.
patent: 4942618 (1990-07-01), Sumi et al.
patent: 4974261 (1990-11-01), Nakahara et al.
patent: 4988202 (1991-01-01), Nayar et al.
patent: 4999785 (1991-03-01), Schmuter

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